In the wake of a plunge in U.S. semiconductor stocks, the KOSPI fell more than 8% intraday, triggering a circuit breaker, and closed down 6.02% at 5,059.69. OpenAI unveiled GPT-6 Cyber, a cybersecurity model that finds Linux vulnerabilities on its own, and an outside assessment found Anthropic's AI development pace has accelerated 1.9x. We also round up the payment date for Nvidia's investment in Naver, Google's $17 billion Wyoming data center, and the U.S. Justice Department's superintelligence task force.
🇰🇷 KOSPI Circuit Breaker Trips After 8% Intraday Plunge… Closes Down 6.02% at 5,059.69
As U.S. AI and semiconductor stocks plunged, the KOSPI fell more than 8% early in the session, triggering a first-stage circuit breaker at 9:03 a.m. The index sank as low as 4,911.28 intraday before closing at 5,059.69, down 324.11 points (6.02%) from the previous session, and the KOSDAQ also closed down 5.03% at 644.27. Samsung Electronics fell 6.35% to ₩188,700, SK Hynix plunged 10.44% to ₩1,132,000, and foreign investors net sold ₩6.162 trillion over two days.
🛡️ OpenAI Unveils Cybersecurity Model GPT-6 Cyber… Finds 948 Linux Root Exploits
OpenAI released GPT-6 Cyber, an advanced cybersecurity-focused model, to a limited set of customers. An automated pipeline using the model analyzed 2,308 Linux kernel vulnerabilities over about 30 hours and produced 948 distinct local privilege escalation (root) exploits, and it also found 81 new vulnerabilities in Firefox. The cost to produce a single exploit was about $1,279, and access to the model is restricted to vetted institutions.
📈 METR: "Anthropic's AI Development Speed Accelerated 1.9x… Faster Than Its Own Safety Report Suggests"
Independent evaluation organization METR said in a review released November 5 that Anthropic's model development pace has accelerated about 1.9x compared with before October 2025. The finding comes from reviewing internal development data from August 12 to October 29, and points to AI itself driving the acceleration of research. However, METR noted that Anthropic removed much of the evidence it judged most informative, so the public version understates the actual acceleration.
🇰🇷 Nvidia Pays ₩1.3412 Trillion into Naver… 200MW AI Factory Planned
On November 6, the scheduled payment date for Nvidia's third-party allotment capital increase in Naver, the ₩1.3412 trillion investment was paid in. Naver has signed a deal with Brookfield to secure up to $9 billion in computing infrastructure and is pushing ahead with building a 200MW AI factory by 2028. Even on the day of the market plunge, AI cloud and software stocks were strong — Ellise rose 19.59% and NHN 14.26%, while Samsung SDS, LG CNS, and Naver also gained.
🏭 Google to Invest $17 Billion in Wyoming Data Center… Promises to Cover Full Power Costs
Google will spend $17 billion to build a new data center in Wyoming. It said it will cover the full cost of the power it uses and set up a community council to gather local residents' views. The move follows a week in which 40 of 41 data center-related local ballot measures across the U.S. were defeated, and it comes as big tech companies step up efforts to win over communities amid growing local opposition to data center construction.
⚖️ U.S. Justice Department Launches 'Superintelligence Task Force'… To Investigate Misuse of Advanced AI
The U.S. Department of Justice has launched a superintelligence task force to investigate the illegal use of advanced AI. With AI models increasingly being misused for crimes such as cyberattacks, the department has created a dedicated investigative unit, extending AI safety and regulation discussions beyond technology development into law enforcement. On the same day, OpenAI also announced a partnership with Australian universities to bring ChatGPT into classrooms and research.
💰 Claude Launches 'Personal Finance' Beta Linking Personal Bank Accounts
Anthropic introduced a "Personal Finance" beta feature for Claude that lets users connect their personal bank accounts. The finance-focused AI tool enables personalized financial advice based on account information. Meanwhile, Google showcased 15-second video generation through Gemini Omni 1.2 Flash, and Nvidia unveiled Cosmos 3, an open-world model for autonomous driving and robot simulation.